Global Patent Index - EP 0319041 A2

EP 0319041 A2 19890607 - Method and apparatus for fusion-splicing polarization maintaining optical fibers.

Title (en)

Method and apparatus for fusion-splicing polarization maintaining optical fibers.

Title (de)

Verfahren und Vorrichtung zum Schweissen von polarisationshaltenden optischen Fasern.

Title (fr)

Procédé et appareil pour souder des fibres optiques en maintenant leur polarisation.

Publication

EP 0319041 A2 19890607 (EN)

Application

EP 88120183 A 19881202

Priority

  • JP 5279988 A 19880307
  • JP 30719287 A 19871204
  • JP 30719387 A 19871204

Abstract (en)

theta -clamp (58) also serves as a jacket clamp. The clamp comprises a cover (60) mounted on an arm (56) by a hinge (62) and kept closed by a magnet (64), so that a pusher (66) provided in the cover (60) is urged against a jacketed portion (12) of an optical fiber (10) by a spring (68). In this state, the fiber (10) is rotated in a theta direction by rotating a dial (36). theta -clamp (40) also serves as a jacket clamp. Therefore, 1. The theta -clamp (40) can be positioned close to a fiber clamp (22). For this reason, the optical fiber is not twisted during theta -axes alignment, and a follow-up property of rotation of the optical fiber with respect to rotation of the theta axis is improved. In addition, the apparatus need not be adjusted so as not to twist the optical fiber. 2. The distance between fiber clamp (22) and theta -clamp (40) is shortened. Therefore, when the optical fiber is clamped and moved in the z direction, the jacketed portion (12) is not flexed. For this reason, a follow-up property of movement of the end face of the optical fiber with respect to movement of a table (24) in the z-axis direction is improved. n

IPC 1-7

C03B 37/14

IPC 8 full level

G02B 6/255 (2006.01)

CPC (source: EP US)

G02B 6/2551 (2013.01 - EP US); G02B 6/2555 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0319041 A2 19890607; EP 0319041 A3 19900516; EP 0319041 B1 19940309; DE 3888306 D1 19940414; DE 3888306 T2 19941013; DE 3888306 T4 19950202; US 4911524 A 19900327; US 5013345 A 19910507

DOCDB simple family (application)

EP 88120183 A 19881202; DE 3888306 A 19881202; DE 3888306 T 19881202; US 27860288 A 19881201; US 35591989 A 19890523